Anchor for hangers



Nov. 8, 1932. E. w. HELBERG ANCHOR FOR HANGERS Filed May 22, 1929 Zia 57I I o Gamay.

Patented Nov. 8, 1932 warren STATES EDWIN WALTER antenna, or CHICAGO,ILLINOIS- ANCHOR FOR'HANGERS Q 7 Application filed May 1929.. Serialnojacawz; I

This invention relates to an anchor designed primarily for use insuspending pipes and similar hangers from concrete structures.

It is an object of the present invention to provide an anchoring devicewhich can be placed in a concrete form before the concrete 'is pouredand, after the form has been removed, will present an open threadedrecess or socket into which a hanger can be directed. 19 Another objectis to provide simple and efiicient means whereby the anchoring devicescan be held properly positioned during the pouring operation.

A further object is to provide means for preventing the anchoringdevices from becoming partly or entirely filled with concrete whilebeing embedded therein or cover-ed thereby.

A still further object is to provide an anchoring device which issimplein construction, cheap to manufacture, and does notre quire any specialskill in positioning the-same for use.

With the foregoing and other objects'in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction.hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawing the preferred forms of the invention havebeen shown.

In said drawing, Figure 1 is a section through aportion of a form havingconcrete therein, two different 49 kinds of anchoring devices beingshown positioned therein, the hangers to be used with the anchoringdevices being indicated by broken lines.

Figure 2 is a section through another form A? of anchormg device.

Figure 3 is a section through an additional form of the invention.

Referring to the figures by characters of reference, 1 designates atubular member one end of which is fitted in a ring-like disk 2.

Extending diametrically through the tubu- U upper portion of theanchoring member 10.

The other end of the tubular member is. split longitudinally so as toprovi-deopposed arms 5 that diverge along curved lines. plug 6 of woodor other suitablematerial is insertable into the tubular .member at theforked end thereof for the purpose of sealing said end of the member.The other end I of the tubular member is engaged by the end of a hanger,.8. v This hanger canv be in the form of a pipe, rod, or the like forsupport 9 ing any suitable structure such as a sprinkler pipe, steampipe, etc., indicated at P.. i

p In practice, after a concrete form. F has o1 gr been set up, theanchoring devicel is placed at the point where a hanger is to belocated.It is held in position by driving nails .9 or other suitable fasteningdevice s" ixinto the bottom of the form F. Thus theanchoring device willbe held fixedly in anupstanding position. Plug 6 of course: closes theupper end of the anchoring device. j Thereafter'the concrete C ispouredinto the "form and will cover the. anchoring device which therebybecomes firmly connected to the concreteafter 7 I Subsquently to'the'foregoing operation the formis taken down in the usualway,the bot 1tomthereofbeing-pulled-away from the nails 9 Thusithe lower end ofthe'anchoringdevice with the ring 2 thereon will" be exposed atthe-lower surface of the molded concrete and the hanger 8 can thus'bescrewed into the anchoring device.

Instead of making the anchoring device as described, it can beconstructed as illustrated at the right of Figure 1 and in Figure 2. Inthis structure the anchoring device comprises a tube 10 having one ormore prongs 11 extending from one end thereof.

lar member adjacent its other end is an an choring pin 12 the diameterof which is substantially equal-to the internal diameter of the tubularanchoring member 10 so that this pin 12 thus serves not only to hold thetubularmember 10 against withdrawal from the concrete but it also actsas a closure for the In practice the prongs 11 are driven into 15390 thebottom of the, form F at the point where the hanger is to be suspendedand these prongs will thus hold the anchoring device properlypositioned. Thereafter the con crete is poured into the form and'willcover it. After the concrete has set the form can be taken down asbefore explained and the projecting prongs 11 can be broken off or bentback against the concrete. A hanger can then be screwed into theanchoring device. e 1

Obviously other forms of the device difierjing from those shown inFigures 1, and 2 can he used. For example, andas shown in Figure 3, thetubular member 13 can be closed adj acent tothe arms 14 pinchingtogether the'opposed portions of the member, as at .15. Thus it becomesunnecessary to use a plug. What is claimed is:

v 1. A device of the class described including a single length of pipefor engaging and supporting a hanger inserted into one end, andanchoring means separate from the pipe for closing the other end thereofagainst the admission of poured concrete.

2. A device of the class described including a single length of pipehaving a hanger receiving end, means for attaching said end to the innersurface of a form, and an anchoring pin extending through the other endof the pipe, and closing said end against the admission of pouredplastic material.-

3. A device of the class described including a single length of pipe ofuniform diameter having one end interiorly screw-threaded for engagementwith a hanger, means on said end'for attachment to agform, and meansseated in the other end portion of the pipe 40 for closing said endagainst the admission of poured plastic material, said means projectingbeyond the pipe to constitutejan anchor. In testimony that I claim theforegoing as my own, I have hereto affixed my signature.

EDWIN WALTER HELBERG.

